Home / 5,416.61-7,478.14-3,428.87

Finding the Fourth Proportional to 5,416.61, 7,478.14 and 3,428.87

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Solution

The fourth proportional to 5,416.61, 7,478.14 and 3,428.87 is: 4,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.61 : 7,478.14 = 3,428.87 : x
  2. Step 2: Convert to fraction form
    5,416.61/7,478.14 = 3,428.87/x
  3. Step 3: Cross multiply
    5,416.61x = 7,478.14 × 3,428.87
  4. Step 4: Simplify right side
    5,416.61x = 25,641,523.94
  5. Step 5: Solve for x
    x = 25,641,523.94/5,416.61
  6. Step 6: Final answer
    x = 4,733.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.